Description

Trimethylbenzene (CAS NO 25551-13-7) is a high-purity aromatic hydrocarbon solvent and critical chemical intermediate essential for advanced manufacturing processes. Its consistent quality and reliable performance make it a cornerstone for formulations requiring precise solvency and controlled reactivity. This product is primarily utilized by the chemical synthesis, coatings, and specialty materials industries where its properties as a solvent and precursor are indispensable.

Application

• As a high-boiling point solvent in industrial coatings, paints, and resin formulations.
• Key intermediate in the synthesis of specialty chemicals, including dyes, pigments, and antioxidants.
• Precursor for trimellitic anhydride (TMA), a vital monomer for high-performance polymers and plasticizers.
• Component in fuel and lubricant additives to enhance performance characteristics.
• Solvent and reaction medium in organic synthesis and pharmaceutical manufacturing.
• Used in the production of epoxy resin hardeners and other thermosetting polymers.

Basic Information

Product Name	Trimethylbenzene
CAS No.	25551-13-7
Molecular Formula	C9H12
Molecular Weight	120.19 g/mol
Synonyms	1,2,4-Trimethylbenzene; Pseudocumene; psi-Cumene; Unsym-Trimethylbenzene; 4-Ethyltoluene (isomer); Trimethylbenzene, mixed isomers; Benzene, 1,2,4-trimethyl-
EINECS	247-099-9

Quality Control

Our Trimethylbenzene is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. The product undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to meet exacting industry specifications. Certificates of Analysis (COA) detailing all quality parameters are available upon request for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong oxidizing agents. Keep container tightly sealed when not in use to prevent evaporation and minimize moisture absorption.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.5%
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	0.875 - 0.885
Distillation Range	165 - 175°C

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.